MASKX vs. BGSAX
MASKX (iShares Russell 2000 Small-Cap Index Fund) and BGSAX (BlackRock Technology Opportunities Fund Investor A) are both mutual funds - MASKX is a Small Cap Blend Equities fund managed by BlackRock, while BGSAX is a Technology Equities fund managed by BlackRock. Over the past 10 years, MASKX returned 11.74%/yr vs 26.34%/yr for BGSAX. A 0.78 correlation means they provide meaningful diversification when combined. MASKX charges 0.12%/yr vs 1.20%/yr for BGSAX.
Performance
MASKX vs. BGSAX - Performance Comparison
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Returns By Period
In the year-to-date period, MASKX achieves a 21.66% return, which is significantly lower than BGSAX's 43.67% return. Over the past 10 years, MASKX has underperformed BGSAX with an annualized return of 11.74%, while BGSAX has yielded a comparatively higher 26.34% annualized return.
MASKX
- 1D
- 0.84%
- 1M
- 4.84%
- YTD
- 21.66%
- 6M
- 18.89%
- 1Y
- 42.50%
- 3Y*
- 19.69%
- 5Y*
- 6.84%
- 10Y*
- 11.74%
BGSAX
- 1D
- 0.07%
- 1M
- 9.19%
- YTD
- 43.67%
- 6M
- 42.15%
- 1Y
- 65.19%
- 3Y*
- 39.96%
- 5Y*
- 16.00%
- 10Y*
- 26.34%
MASKX vs. BGSAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MASKX iShares Russell 2000 Small-Cap Index Fund | 21.66% | 12.76% | 11.35% | 16.99% | -20.39% | 14.54% | 19.99% | 25.54% | -11.03% | 14.61% |
BGSAX BlackRock Technology Opportunities Fund Investor A | 43.67% | 19.63% | 40.56% | 49.09% | -43.13% | 8.19% | 86.27% | 43.84% | 2.03% | 49.45% |
Correlation
The correlation between MASKX and BGSAX is 0.62, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.62 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.61 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.70 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.68 |
Correlation (All Time) Calculated using the full available price history since May 15, 2000 | 0.78 |
The correlation between MASKX and BGSAX shifts across timeframes, from 0.61 (3 years) to 0.78 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
MASKX vs. BGSAX — Risk / Return Rank
MASKX
BGSAX
MASKX vs. BGSAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2000 Small-Cap Index Fund (MASKX) and BlackRock Technology Opportunities Fund Investor A (BGSAX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| MASKX | BGSAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.17 | ||
| Sortino ratioReturn per unit of downside risk | +0.12 | ||
| Omega ratioGain probability vs. loss probability | 1.37 | 1.41 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 4.02 | 3.65 | +0.37 |
| Martin ratioReturn relative to average drawdown | 14.25 | 10.67 | +3.58 |
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Drawdowns
MASKX vs. BGSAX - Drawdown Comparison
The maximum MASKX drawdown since its inception was -59.06%, smaller than the maximum BGSAX drawdown of -73.75%. Use the drawdown chart below to compare losses from any high point for MASKX and BGSAX.
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Drawdown Indicators
| MASKX | BGSAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.06% | -73.75% | +14.69% |
Max Drawdown (1Y)Largest decline over 1 year | -11.01% | -18.49% | +7.48% |
Max Drawdown (3Y)Largest decline over 3 years | -27.53% | -27.75% | +0.22% |
Max Drawdown (5Y)Largest decline over 5 years | -31.98% | -49.22% | +17.24% |
Max Drawdown (10Y)Largest decline over 10 years | -41.68% | -49.22% | +7.54% |
Current DrawdownCurrent decline from peak | 0.00% | -0.22% | +0.22% |
Average DrawdownAverage peak-to-trough decline | -11.61% | -26.33% | +14.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.10% | 6.32% | -3.22% |
Volatility
MASKX vs. BGSAX - Volatility Comparison
The current volatility for iShares Russell 2000 Small-Cap Index Fund (MASKX) is 6.40%, while BlackRock Technology Opportunities Fund Investor A (BGSAX) has a volatility of 14.30%. This indicates that MASKX experiences smaller price fluctuations and is considered to be less risky than BGSAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MASKX | BGSAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.40% | 14.30% | -7.90% |
Volatility (6M)Calculated over the trailing 6-month period | 14.31% | 23.64% | -9.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 19.71% | 27.91% | -8.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.24% | 28.33% | -5.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.75% | 26.20% | -2.45% |
MASKX vs. BGSAX - Expense Ratio Comparison
MASKX has a 0.12% expense ratio, which is lower than BGSAX's 1.20% expense ratio.
Dividends
MASKX vs. BGSAX - Dividend Comparison
MASKX's dividend yield for the trailing twelve months is around 2.58%, less than BGSAX's 9.43% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BGSAX BlackRock Technology Opportunities Fund Investor A | 9.43% | 13.55% | 8.68% | 0.00% | 0.00% | 7.66% | 4.86% | 1.50% | 1.24% | 8.01% | 1.17% | 0.00% |
MASKX iShares Russell 2000 Small-Cap Index Fund | 2.58% | 3.13% | 4.81% | 2.92% | 1.70% | 7.64% | 1.42% | 3.43% | 4.26% | 3.15% | 4.60% | 3.63% |
Frequently Asked Questions
MASKX and BGSAX have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGSAX has higher volatility (14.30%) compared to MASKX (6.40%). In terms of maximum drawdown, MASKX dropped -59.06% vs BGSAX's -73.75%.
BGSAX currently has the higher Sharpe Ratio (2.43 vs 2.25), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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